<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .circle {
            width: 100px;
            height: 100px;
            border-radius: 50px;
            background-color: green;
        }
        .in {
            display: inline-block;
        }
        body {
            width: 400px;
        }
    </style>
</head>
<body>
    <div class="in">66</div>
    <div class="circle"></div>
    <div class="test1" style="width: 400px;">
        <div style="padding: 0 40px;height: 200px;"></div>
    </div>
</body>
</html>